20412766 has 8 divisors (see below), whose sum is σ = 33402744. Its totient is φ = 9278520.

The previous prime is 20412727. The next prime is 20412797. The reversal of 20412766 is 66721402.

20412766 = T₁₉₂₁ + T₁₉₂₂ + ... + T₁₉₃₁.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463905 + ... + 463948.

It is an arithmetic number, because the mean of its divisors is an integer number (4175343).

Almost surely, 2^20412766 is an apocalyptic number.

20412766 is a deficient number, since it is larger than the sum of its proper divisors (12989978).

20412766 is a wasteful number, since it uses less digits than its factorization.

20412766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927866.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20412766 is about 4518.0489151845. The cubic root of 20412766 is about 273.2964260433.

The spelling of 20412766 in words is "twenty million, four hundred twelve thousand, seven hundred sixty-six".